Citation: Oberti, R.; Ungaretti, L.; Cannillo, E.; Hawthorne, F. C. (1992). The behaviour of Ti in amphiboles: I. Four- and six-coordinate Ti in richterite Sample: R(3) Potassium-fluor-richterite. European Journal of Mineralogy, 4, pp. 425-439.
Formula: Al0.018 Ca1.098 F1.263 Fe0.012 H0.737 K0.724 Mg4.983 Mn0.004 Na1.172 O22.737 Si7.887 Ti0.002
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Al16 F4 Fe10 Mg10 Mn10 O48 Si16 Ti16 (Al8 F2 Fe5 Mg5 Mn5 O24 Si8 Ti8)
Multiplicity: 1